References

Dolenc, D., B. Romanowicz, D. Stakes, P. McGill, and D. Neuhauser, Observations of infragravity waves at the Monterey ocean bottom broadband station (MOBB), Geochem., Geophys., Geosys., 6, Q09002, doi:10.1029/2005GC000988, 2005.

Dolenc, D., B. Romanowicz, R. Uhrhammer, P. McGill, D. Neuhauser, and D. Stakes, Identifying and removing noise from the Monterey ocean bottom broadband seismic station (MOBB) data, Geochem. Geophys. Geosys., 8, Q02005, doi:10.1029/2006GC001403, 2007a.

Dolenc, D., B. Romanowicz, and W. Wilcock, Observations of infragravity waves at the Endeavour ocean bottom broadband station (KEBB), Seism. Res. Lett., 78, 261, 2007b.

Romanowicz, B., D. Stakes, D. Dolenc, D. Neuhauser, P. McGill, R. Uhrhammer, and T. Ramirez, The Monterey Bay broadband ocean bottom seismic observatory, Annals of Geophysics, 49, 607-623, 2006.

Rhie, J. and B. Romanowicz, A study of the relation between ocean storms and the Earth's hum, G-Cubed, 7, doi:10.1029/2006GC001274, 2006.

**Figure 2.23:** PSD at KEBB, MOBB, and YBH for the vertical (left) and horizontal (right) component on a stormy day (10/08/2003). The USGS high- and low-noise models for land stations are shown as dashed lines.
$\begin{figure}\begin{center} \epsfig{file=dolenc07_1_1.eps, width=13.1cm}\end{center}\end{figure}$

**Figure 2.24:** Top panel: PSD for the vertical KEBB component as a function of time (7 days) and period (10-500 sec). Bottom 6 panels: The spectral wave density of the ocean waves measured at the buoys. The storm observed on day 48 was approaching from the WSW direction. The change of the infragravity peak width (vertical black line) coincides with the time when the short-period ocean waves reach the coast and not when they pass above KEBB.
$\begin{figure}\begin{center} \epsfig{file=dolenc07_1_2.eps, width=17cm}\end{center}\end{figure}$